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fix halt command encoding

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This commit is contained in:
EDiasAlberto 2024-06-12 20:40:38 +01:00
parent c52de918db
commit 6ddf18be96
3 changed files with 5 additions and 3 deletions
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2
src/assemble.c
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@ -19,7 +19,7 @@ int main(int argc, char **argv) {
// Parse the source file // Parse the source file
a64inst_instruction *instructions = parse(source, lineCount); a64inst_instruction *instructions = parse(source, lineCount);
// First Pass: Create the symbol table // First Pass: Create the symbol table
st *table = firstPass(instructions, lineCount); st *table = firstPass(instructions, lineCount);

2
src/parser.h
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@ -1,6 +1,6 @@
#include "a64instruction/a64instruction.h" #include "a64instruction/a64instruction.h"
#define OPERAND_DELIMITER ", " #define OPERAND_DELIMITER ", "
#define HALT_ASM_CMD "and x0, x0, x0" #define HALT_ASM_CMD "and x0, x0, x0\n"
a64inst_instruction *parse(char **asmLines, int lineCount); a64inst_instruction *parse(char **asmLines, int lineCount);

4
src/twopassassembly.c
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@ -4,6 +4,8 @@
#include <stdlib.h> #include <stdlib.h>
#include <limits.h> #include <limits.h>
#define HALT_BINARY 2315255808
// Generates assembled code based on the two-pass assembly method // Generates assembled code based on the two-pass assembly method
word assembleBranch(a64inst_instruction *instr) { word assembleBranch(a64inst_instruction *instr) {
@ -209,7 +211,7 @@ word *secondPass(a64inst_instruction instrs[], int numInstrs, st* table) {
index++; index++;
break; break;
case a64inst_HALT: case a64inst_HALT:
arr[index] = 69U * (1 << 25); arr[index] = HALT_BINARY;
index++; index++;
break; break;
case a64inst_LABEL: case a64inst_LABEL: